Python win32pdh.CloseQuery方法代码示例

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def GetPerformanceAttributes(object, counter, instance=None,
                                 inum=-1, format=None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp (dead link)
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None:
            format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter))
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def GetPerformanceAttributes(object, counter, instance=None,
                                 inum=-1, format=None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None:
            format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter))
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def GetPerformanceAttributes(object, counter, instance = None, inum=-1,
                             format = win32pdh.PDH_FMT_LONG, machine=None):
    # NOTE: Many counters require 2 samples to give accurate results,
    # including "% Processor Time" (as by definition, at any instant, a
    # thread's CPU usage is either 0 or 100).  To read counters like this,
    # you should copy this function, but keep the counter open, and call
    # CollectQueryData() each time you need to know.
    # See http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938
    # and http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
    # My older explanation for this was that the "AddCounter" process forced
    # the CPU to 100%, but the above makes more sense :)
    path = win32pdh.MakeCounterPath( (machine,object,instance, None, inum,counter) )
    hq = win32pdh.OpenQuery()
    try:
        hc = win32pdh.AddCounter(hq, path)
        try:
            win32pdh.CollectQueryData(hq)
            type, val = win32pdh.GetFormattedCounterValue(hc, format)
            return val
        finally:
            win32pdh.RemoveCounter(hc)
    finally:
        win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def GetPerformanceAttributes(object, counter, instance = None,
                                 inum=-1, format = None, machine=None):
        # NOTE: Many counters require 2 samples to give accurate results,
        # including "% Processor Time" (as by definition, at any instant, a
        # thread's CPU usage is either 0 or 100).  To read counters like this,
        # you should copy this function, but keep the counter open, and call
        # CollectQueryData() each time you need to know.
        # See http://msdn.microsoft.com/library/en-us/dnperfmo/html/perfmonpt2.asp
        # My older explanation for this was that the "AddCounter" process forced
        # the CPU to 100%, but the above makes more sense :)
        import win32pdh
        if format is None: format = win32pdh.PDH_FMT_LONG
        path = win32pdh.MakeCounterPath( (machine, object, instance, None, inum, counter) )
        hq = win32pdh.OpenQuery()
        try:
            hc = win32pdh.AddCounter(hq, path)
            try:
                win32pdh.CollectQueryData(hq)
                type, val = win32pdh.GetFormattedCounterValue(hc, format)
                return val
            finally:
                win32pdh.RemoveCounter(hc)
        finally:
            win32pdh.CloseQuery(hq) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def close(self):
        for hc in self.hcs:
            if not hc:
                continue
            try:
                win32pdh.RemoveCounter(hc)
            except:
                pass
        self.hcs = []
        for hq in self.hqs:
            if not hq:
                continue
            try:
                win32pdh.CloseQuery(hq)
            except:
                pass
        self.hqs = [] 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def killbase(self,base=None):
		'''
		### This is not a public method
		Mission critical function to kill the win32pdh objects held
		by this object.  User's should generally use the close method
		instead of this method, in case a sub-class has overridden
		close to provide some special functionality.
		'''
		# Kill Pythonic references to the objects in this object's namespace
		self._base = None
		counters = self.counters
		self.counters = []
		# we don't kill the curpaths for convenience, this allows the
		# user to close a query and still access the last paths
		self.active = 0
		# Now call the delete functions on all of the objects
		try:
			map(win32pdh.RemoveCounter,counters)
		except:
			pass
		try:
			win32pdh.CloseQuery(base)
		except:
			pass
		del(counters)
		del(base) 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def ShowAllProcesses():
    object = find_pdh_counter_localized_name("Process")
    items, instances = win32pdh.EnumObjectItems(None,None,object,
                                                win32pdh.PERF_DETAIL_WIZARD)
    # Need to track multiple instances of the same name.
    instance_dict = {}
    for instance in instances:
        try:
            instance_dict[instance] = instance_dict[instance] + 1
        except KeyError:
            instance_dict[instance] = 0

    # Bit of a hack to get useful info.
    items = [find_pdh_counter_localized_name("ID Process")] + items[:5]
    print "Process Name", ",".join(items)
    for instance, max_instances in instance_dict.iteritems():
        for inum in xrange(max_instances+1):
            hq = win32pdh.OpenQuery()
            hcs = []
            for item in items:
                path = win32pdh.MakeCounterPath( (None,object,instance,
                                                  None, inum, item) )
                hcs.append(win32pdh.AddCounter(hq, path))
            win32pdh.CollectQueryData(hq)
            # as per http://support.microsoft.com/default.aspx?scid=kb;EN-US;q262938, some "%" based
            # counters need two collections
            time.sleep(0.01)
            win32pdh.CollectQueryData(hq)
            print "%-15s\t" % (instance[:15]),
            for hc in hcs:
                type, val = win32pdh.GetFormattedCounterValue(hc, win32pdh.PDH_FMT_LONG)
                print "%5d" % (val),
                win32pdh.RemoveCounter(hc)
            print
            win32pdh.CloseQuery(hq)

# NOTE: This BrowseCallback doesn't seem to work on Vista for markh.
# XXX - look at why!? 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def __del__(self):
        try:
            win32pdh.CloseQuery(self.hq)
        except AttributeError:
            # An error occurred during instantiation before a query was opened.
            pass 

# 需要导入模块: import win32pdh [as 别名]
# 或者: from win32pdh import CloseQuery [as 别名]
def FindChildrenOf(self, parentid):

        childPids = []

        object = "Process"
        items, instances = win32pdh.EnumObjectItems(None, None, object, win32pdh.PERF_DETAIL_WIZARD)

        instance_dict = {}
        for instance in instances:
            if instance in instance_dict:
                instance_dict[instance] += 1
            else:
                instance_dict[instance] = 0

        for instance, max_instances in instance_dict.items():
            for inum in range(max_instances + 1):
                hq = win32pdh.OpenQuery()
                try:
                    hcs = []

                    path = win32pdh.MakeCounterPath((None, object, instance, None, inum, "ID Process"))
                    hcs.append(win32pdh.AddCounter(hq, path))

                    path = win32pdh.MakeCounterPath((None, object, instance, None, inum, "Creating Process ID"))
                    hcs.append(win32pdh.AddCounter(hq, path))

                    try:
                        # If the process goes away unexpectedly this call will fail
                        win32pdh.CollectQueryData(hq)

                        type, pid = win32pdh.GetFormattedCounterValue(hcs[0], win32pdh.PDH_FMT_LONG)
                        type, ppid = win32pdh.GetFormattedCounterValue(hcs[1], win32pdh.PDH_FMT_LONG)

                        if int(ppid) == parentid:
                            childPids.append(int(pid))
                    except:
                        pass

                finally:
                    win32pdh.CloseQuery(hq)

        return childPids